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G. W. BEAM. PLANER FOR PLOW BEAMS.

No. 492,338. Paltented Feb. 21, 1893.

UNITED STATES PATENT OFFrcE.

GEORGE WV. BEAM, OF CANTON, OHIO, ASSIGNOR TO THE BUOl-IER & GIBBS PLOWCOMPANY, OF SAME PLACE.

PLAN ER FOR PLOW-BEAMS.

SPECIFICATION forming part of Letters Patent No. 492,338, dated February21, 1893.

Application filed June 27,1892. Serial No. 438,185. (No model.)

To aZZ whom it may concern.-

Be it known that I, GEORGE WV. BEAM, a citizen of the United States, anda resident of Canton, county of Stark, State of Ohio, have invented anew and useful Improvement in Planers for Plow-Beams, of which thefollowing is a full, clear, and exact description, reference being badto the accompanying drawings, making part of this specification.

My invention relates to an improvement in planing machines andparticularly to machines adapted for planing plowbeams and consists ofcertain features of construction and combination of parts as will behereinafter described and pointed out in the claims.

Figure 1 of the accompanying drawings is a view in perspective of aplaner illustrating my invention, taken from the right hand end of themachine, and: Fig. 2 a similar view from the left hand.

Referring to the drawings similar letters will indicate correspondingparts.

A represents the bed to which is secured an upright frame B, and O thetable which moves longitudinally on the bed to which is secured thepattern guides D. On the opposite edges of the upright frame is providedslides a on which is placed cross heads E and E adapted for verticalmovement on the slides a, at the lower end portion of the cross heads isprovided journal boxes 17 in which is supported the journals of thecutter headsF and F. At the upper portion of the upright frames, isprovided a slide a in which is provided a journal box for the rock shaftd, and a threaded aperture eto correspond with the thread on the screw fby which the slides 0 may be raised or lowered for the purposehereinafter explained. On the shaft d is supported a working beam G,having at each of its ends a link connection H, with the cross heads Eand E; to raise the cross head and cutters simultaneously the crankwheel J is turned to rotate the shaft f and gear wheels i j to turn thescrews f in the slides c. On the front end of the shaft cl, is mountedvertically above the shaft, a weight K to rotate about said shaft ashereinafter explained.

There is also provided on the front upright B, and loosely mounted onthe shaft d a slide that carries a spring bolt Z the upper end of whichengages-a notch min a segment 1% depending from and rigidly secured tothe weight K. Said slide is held against rotation with the shaft by arib projecting from the frame into a groove in the back of the slide. Tooperate the spring bolt a wire 0 is connected to the lower end of thebolt and extended to and connected with a foot lever L. There is also,provided on, and projected from said front upright 13, a bracket M,having therein a groove or race way in which is placed a' rack r, thatengages the teeth of a pinion s, that is mounted on the shaft tjournaled in the bracket M and on the end of said shaft is mounted ahand wheel N. An arm U is projected at right angles with a line drawnvertically through the weight K, the outer end of which is connectedwith the rack a" by a link P, thus forming a connection between theweight K and the hand wheel N.

It will be noticed that by the construction mentioned in the beforegoingparagraph,-that by the use of the hand wheel N, the operator may raiseor lower either of the cutter heads, the pinion s engaging the rack rthe link P, connecting the rack to the arm U, which is connected withthe shaft d, thus by rotating the hand wheel, the connections will rockthe shaft (1, to raise and depress the ends of the working beam to whichthe cutter heads are connected by the links H. As before stated thecutter heads may be raised vertically by the use of the hand wheel J,through its geared connections with the screws f and slides e.

The levers R and S represent the usual starting and reverse lever commonto table planers.

The cutter head F is of the form shown and may be adapted to carry twoor more series of cutters as z of a form that will cut the beam to thedesired shape, I the heads are driven by the pulleys U in oppositedirection to each other, below the journal boxes, and secured thereto isprovided rollers to that travel upon the guide pattern D.

In operation one or more plow beam blanks are secured to the tablebetween the guides D, as shown see Fig. 1, the arch portion up, the handwheel N is turned over to the right which movement will tip the frontend of the working beam down, thus lowering the crosshead E, and cutterhead F until the rollers w rest upon the guide D. The operator will sohold or turn the hand wheel until the weight K has been moved past thevertical line, after which the weight will hold the rollers to down onthe pattern, the cutter head F, following and finishing the front upperportion of the beam, after which the movement of the table 0 isreversed, and the beam carried under the cutters to the position shownin Fig. 2, when the hand wheel is turned to the left to throw the weightK to the left of a vertical line through the center of the weight, inwhich position the weight will hold the rollers to down upon thepattern, the cutters following down and finishing the rear portion ofthe beam.

Having thus fully describedthe nature and the object of my invention,what I claim as new, and desire to secure by Letters Patent, 1s

1. The combination with bed D, table 0, and upright frame B, of thecross heads E and E, cutter heads F and F, journaled to said cross head,rock shaft d Walking beam G, the ends of which have a link connectionwith the cross head, a weight K, and means for rocking said beam andweight to raise and lower the cutter heads, substantially as describedand for the purpose set forth.

2. The combination with the bed D, table 0, and upright frame B of ahand wheel having a geared engagement with a rack having a linkconnection with a rock shaft supporting a walking beam, the two ends ofwhich have a link connection with cross heads E and E which supportcutter heads F and F guides D, and the weight K, by which the cuttersare held to the guide, substantially as described and for the purposeset forth.

3. The combination in a planing machine for plow beams, of a guidepattern to conform to the desired form of beam, the cutter heads F andF, a working beam to which the cutter heads are suspended, the weight Kto hold the cutter heads to the pattern, the swinging segment n lockingbolt Z and pedal L, substantially as described and for the purpose setforth.

In testimony whereof I have hereunto set my hand this th day of June, A.D. 1892.

GEORGE W. REAM. Witnesses:

J os. H. MILLER, M. W. BUCHER.

